Horseshoe.



H. PERKINS.

HOESESHOE.

APPLICATION FILED 00T.19. 1912. I

1,1 21 ,534, Patented Dec. 15, 1914.

39621168686.- 7 a meniorx Cw G? M 1 M HERMAN PERKINS,- OF M'ON'IAGUE, MASSACHUSETTS.

I-IORSESI-IOE.

Specification of Letters Patent.

{Patented Dec. 15, 1914.

Application filed October 19, 1912. Serial No. 726,786.

To all whom it mayooncem:

Be it known that I, HERMAN PERKINs, a citizen of the United States of America, residing at Montague, in the county of Franklin'and State of Massachusetts, have invented an Improvement in Horseshoes, of which the following is a specification.

My invention is an improvement in that class of horse-shoes in which calks are secured to the shoe proper by means of removable fastenings.

My invention is embodied in the construction and combination of parts hereinafter described.

In the accompanying drawing: Figure 1 is a plan view of my horseshoe showing slots for heel calks and slot for the toe-calk with one half of toe-calk in position. Fig. is a side view of my horseshoe fitted with wlnter calks. Fig. 8 is a perspective view: of the bottom of the horseshoe fitted with summer calks. Fig. 4 is a perspective of the toecalk. Fig. 5 is a perspective view of the heel calk. Fig. 6 is a plan view of the sprmg wire key used in fastening the calks in the shoe.

Similar letters refer to similar parts throughout the several views.

My shoe is designed to be used on any horse at any season of the year but is especially convenient in winter when roads are slippery and calks have to be kept sharp.

In Fig. 1 is shown the arrangement of a slot A at the toe and slots B at the heel. These slots are of equal width throughout their length with rounded ends, extending uniformly through the body of shoe. The toe calk is curved to correspond to the shape of the shoe and is placed midway between the inner and outer edges of the shoe. The heel slots are placed in line with the body of shoe.

The toe-calk shown inFig. 4: is provided on its upper side with a tenon E, a third the width of the body of the calk F, extending the whole length of the calk. The body of the calk extending from base of E forms a shoulder which receives the bottom of shoe and sustains all the weight when the calk is put in position by inserting the tenon E in slot A.

The toe-calk is pierced with two holes which register whenthe calk is placed in slot A with two holes G and C of similar size passing through the body of the shoe midway between upper and lower surface of shoe. These holes are to receive the spring fastening shown in Fig. 6 which is composed of a steel spring wire one eighth of an inch. in diameter and is held in position by the binding force of the converging holes. This key cannot be casually displaced or removed.

A hole pierces the tenon of the heel calk in a line with the outer of the two converging holes in the heel of shoe. Thelocking device in the heel calk is similar to that in the toe-calk with the exception that only one prong, of the fastening D, the outer one, passes through the tenon of the heel calk. The other prong passes through a hole entirely within the body of shoe thus giving the fastening a position to clasp the shoe and sustain itself.

The fastening is made with one prong of the key a little longer than the other so as to protrude a little beyond the body of shoe on the inner edge to be easily hit with a hammer to start the fastening when necessary to remove it, and the holes in shoe and calk are at an angle so that when the fastenings are driven in place, the construction affords a strong and positive locking connection, and insures against any casual loosening of the calks.

The holes piercing the body of shoe, being only one-eighth of an inch in diameter, do

not weaken the shoe to any extent.

The construction of this shoe is such that the key receives no force but the weight of the sustained calk.

The long curved slot at toe distributes the strain so asnot to weaken the shoe at that place. The heel slots are at such. an angle that the ends and sides receive the strain equally.

What I claim is 1. The horse-shoe proper provided with slots "and with adjacent, straight, transverse holes which are arranged at an angle.

to. each other, calks having shanks fitting in said slots, and holes coinciding with those in the shoe proper, and spring wire fastenings whose straight prongs converge to a greater degree than said transverse holes and thus require to be sprung farther apart to enter the transverse holes in the shoe and calk shanks, as described.

2. The combination, with a horse-shoe proper having slots as specified, and also transverse holes arranged at a converging angle-and passing through the shoe proper I shoe the point of insertion of the straight prongs WhlCh converge at a greater Witnesses:

and traversing said slots and calk, shanks fastening so that such prong pro ects on the 10 inserted in the slots and having transverse inner sideof the shoe, as described; I I hOlQS COiIlCidiIlg thOSG in the ShOG, proper, ofspring Wire fastenings having I r I angle than said transverse holes, one of said CARL P. ROLLIN, prongs being longer than the Width of the F. F. NINTH.

copies'of tliis'patent may be obtained for five cents each, by addressing the Commissioner of Patents, i

Washington, D. G." V I 

